Reconstruction of the project ruimte in kleur (room in color) by Constant and architect Aldo van Eyck in 1953 for the exhibition Constant. Nueva Babilonia in Musea Nacional Centro de Arte Reina Sofía in 2015-2016 and the exhibition Constant. Space + Color at Cobra Museum of Modern Art in Amstelveen in 2016.
Ruimte in kleur (Room in colors) was part of the exhibition Mens en Huis (Man and Home) at the Stedelijk Museum Amsterdam from November 21 1952 to January 5, 1953.